After you've calculated a least common multiple, always check to be sure your answer can be divided evenly by both numbers. Find the LCM of these sets of numbers. Multiply each factor the greatest number of times it occurs in any of the numbers. 9 has two 3's, and 21 has one 7, so we multiply 3 two times, and 7 once.
10.49 It was really 10.4880884817 but 8 rounds it up to 10.49
Answer:

Step-by-step explanation:
First, we need to find how much extra water Nathan drinks.
extra ounces.
To find the percent increase:
(to the nearest percent)
Hope this helps :)
Answer:
#1 is 2
Step-by-step explanation:
sorry i couldnt get both